# inclue <cstdio>
# include <cstring>
# include <iostream>
# include <algorithm>
using namespace std;

# define testin freopen("in.txt", "r", stdin)
# define testout freopen("out.txt", "w", stdout)

# define rep(x) for(int i = 0; i < (x); ++i)
# define clr(x) memset(x, 0, sizeof(x))
# define clr(x, c) memset(x, 0, (c)*sizeof(x[0]))

typedef unsigned long long int ulli;
typedef long long int lli;

int main()
{
    return 0;
}
